Musical instrument

Abstract

A musical instrument includes a plurality of strings and a body. The body supports the plurality of strings on a first surface of the body. The body includes a groove formed in the first surface that extends linearly. The groove has a constant width and a constant depth.

What is claimed is: 
     
       1. A musical instrument, comprising:
 a plurality of strings; and 
 a body having a top exterior surface and supporting the plurality of strings on a first surface of the body, wherein
 the body includes a groove formed in the first surface that extends linearly, 
 the groove has a constant width and a constant depth, 
 the groove is configured to adjust a vibration of the body, and 
 the groove is formed on the top exterior surface of the body. 
 
 
     
     
       2. The musical instrument according to  claim 1 , wherein the groove extends linearly in a direction that intersects a direction in which the plurality of strings extends. 
     
     
       3. A musical instrument, comprising:
 a plurality of strings; and 
 a body having a top exterior surface and supporting the plurality of strings on a first surface of the body, wherein 
 the body includes a groove formed in the first surface that extends linearly, 
 the groove has a constant width and a constant depth, 
 the groove is configured to adjust a vibration of the body in a direction that intersects a direction in which the plurality of strings extends, and 
 the groove is formed on the top exterior surface of the body. 
 
     
     
       4. The musical instrument according to  claim 3 , wherein
 the body includes a plurality of corner portions, and 
 the groove is provided for one of the plurality of corner portions that has a natural frequency higher than natural frequencies of other corner portions. 
 
     
     
       5. The musical instrument according to  claim 4 , wherein the one of the plurality of corner portions that has a natural frequency higher than the natural frequencies of other corner portions includes, as the groove: i) a groove extending in a protruding direction of the one of the plurality of corner portions, ii) a groove extending in a direction that intersects the protruding direction, or iii) the groove extending in the protruding direction and the groove extending in the direction that intersects the protruding direction. 
     
     
       6. A musical instrument, comprising:
 a plurality of strings; and 
 a body having a top exterior surface and supporting the plurality of strings on a first surface of the body, and 
 a first member fitted in a groove formed in the first surface and having stiffness higher than a stiffness of a portion of the body other than the groove, wherein
 the groove is formed on the top exterior surface of the body. 
 
 
     
     
       7. The musical instrument according to  claim 6 , wherein the first member is fixed to the body at a portion of the first member embedded in the groove. 
     
     
       8. The musical instrument according to  claim 6 , wherein the first member includes a first stiffness portion shaped like a plate and having stiffness that is higher than a stiffness of the portion of the body other than the groove. 
     
     
       9. The musical instrument according to  claim 8 , wherein the first member further comprises a second stiffness portion having stiffness that is lower than a stiffness of the first stiffness portion. 
     
     
       10. The musical instrument according to  claim 9 , wherein the first member further comprises a third stiffness portion that is shaped like a plate and having a stiffness that is higher than a stiffness of the second stiffness portion. 
     
     
       11. The musical instrument according to  claim 10 , wherein, in a state in which the first member is fitted in the groove, the first stiffness portion and the third stiffness portion sandwich the second stiffness portion therebetween in a direction of depth of the groove. 
     
     
       12. The musical instrument according to  claim 11 , wherein, in the state in which the first member is fitted in the groove, the second stiffness portion has a length in the direction of depth of the groove that is larger than a length of the first stiffness portion and a length of the third stiffness portion in the direction of depth of the groove. 
     
     
       13. The musical instrument according to  claim 8 , wherein the first stiffness portion is formed of carbon fiber reinforced plastic. 
     
     
       14. The musical instrument according to  claim 9 , wherein the second stiffness portion is formed of wood. 
     
     
       15. The musical instrument according to  claim 10 , wherein the third stiffness portion is formed of carbon fiber reinforced plastic. 
     
     
       16. The musical instrument according to  claim 1 , wherein the groove is formed at a position different from a position of a pickup and a position of a bridge on the first surface. 
     
     
       17. A musical instrument, comprising:
 a plurality of strings; 
 a body supporting the plurality of strings on a first surface of the body, and 
 a pickguard provided on the first surface, wherein
 the body includes a groove formed in the first surface that extends linearly, 
 the groove has a constant width and a constant depth, and 
 the groove is covered by the pickguard in a state in which the pickguard is attached to the first surface, and exposed in a state in which the pickguard is removed from the first surface. 
 
 
     
     
       18. A musical instrument, comprising:
 a plurality of strings; 
 a body having a top exterior surface and supporting the plurality of strings on a first surface of the body, wherein
 the body includes a groove formed in the first surface that extends linearly, 
 the groove has a constant width and a constant depth, and 
 the groove is formed at a position where the plurality of strings do not overlap the groove when viewed in a direction orthogonal to the first surface, and 
 the groove is formed on the top exterior surface of the body. 
 
 
     
     
       19. The musical instrument according to  claim 1 , further comprising a pickguard provided on the first surface, wherein
 the groove is covered by the pickguard in a state in which the pickguard is attached to the first surface, and exposed in a state in which the pickguard is removed from the first surface. 
 
     
     
       20. A musical instrument, comprising:
 a plurality of strings; and 
 a body supporting the plurality of strings on a first surface of the body, wherein 
 the body includes a groove formed in the first surface that extends linearly, 
 the groove has a constant width and a constant depth, 
 the groove is configured to adjust a vibration of the body in a direction that intersects a direction in which the plurality of strings extends 
 the body includes a plurality of corner portions, and 
 the groove is provided for one of the plurality of corner portions that has a natural frequency higher than natural frequencies of other corner portions. 
 
     
     
       21. The musical instrument according to  claim 20 , wherein the one of the plurality of corner portions that has a natural frequency higher than the natural frequencies of other corner portions includes, as the groove:
 i) a groove extending in a protruding direction of the one of the plurality of corner portions, 
 ii) a groove extending in a direction that intersects the protruding direction, or 
 iii) the groove extending in the protruding direction and the groove extending in the direction that intersects the protruding direction.